package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        //获取属性值
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //登录执行【数据库调用查找】
        Employee employee = employeeMapper.getByUsername(username);

        //判断各种异常
        //账号不存在
        if (employee == null) {
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }
        //密码错误
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info("密码是"+password);
        if (!password.equals(DigestUtils.md5DigestAsHex(employee.getPassword().getBytes()))) {
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }
        //账号被锁定
        if (employee.getStatus() == StatusConstant.DISABLE) {
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }
        return employee;
    }

    /*新增员工*/
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();

        //对象属性拷贝【如果两个对象的部分属性名可以对应上的话】，拷贝顺序是 源，目标
        BeanUtils.copyProperties(employeeDTO, employee);

        //设置账号的状态，默认正常状态 1表示正常 0表示锁定
        employee.setStatus(StatusConstant.ENABLE);

        //设置密码，默认密码123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //设置当前记录的创建时间和修改时间
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        //设置当前记录创建人id和修改人id
        employee.setCreateUser(BaseContext.getCurrentId());//目前写个假数据，后期修改
        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);//后续步骤定义
    }

    /*员工分页查询*/
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        // select * from employee limit 0,10
        PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
        Page<Employee> page=employeeMapper.pageQuery(employeePageQueryDTO);
        long total=page.getTotal();
        List<Employee> records=page.getResult();
        return new PageResult(total,records);
    }

    /*启用禁用员工账号*/
    @Override
    public void startOrStop(Integer status, Long id) {
        Employee employee=Employee.builder()
                .status(status)
                .id(id)
                .build();
        employeeMapper.update(employee);
    }


    /*编辑员工——根据id回显员工信息*/
    @Override
    public Employee getById(Long id) {
        Employee employee=employeeMapper.getById(id);
        employee.setPassword("****");
        return employee;
    }

    /*编辑员工——修改员工信息*/
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);
    }




}
